Ethan had 81 cds until he won c more in a contest. choose the expression that shows how many cds ethan has now.

a. 81c
b. 81+c
c. 81/c
d. c/81

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

What are the exclude value of mn+3m

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square